| get_beta_A | Evaluate the estimated treatment effect trajectory on the retrospective time scale |
| get_beta_mu | Get the estimated baseline retrospective trajectory with pointwise confidence intervals |
| plot_beta_A | Plot the estimated treatment effect trajectory on the retrospective time scale |
| plot_beta_mu | Plot the estimated baseline trajectory on the retrospective time scale |
| RetroJM | Fit the two-stage model for survival imputation and longitudinal analysis |
| Retro_data | Simulated retrospective joint modeling data for 'RetroJM()' |
| test_beta_slope | Test for a change in slope at a knot of a linear-spline trajectory |
| TTM | Fit a weighted GEE terminal trend model on the retrospective time scale |
| TTM_data | Simulated terminal trend data for 'TTM()' |
| TTM_linear | Fit a weighted GEE terminal trend model with a linear spline basis |